Motorola VT2142 Custom Port Forwarding, Application, Source IP Address, Destination IP Address

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Configuration: Basic Advanced TCP/IP

Custom Port Forwarding

You can create up to 20 custom port forwarding entries to support specific services or applications, such as concurrent NAT/NAPT operation.

Custom Port Forwarding fields

Field	Description
Enable	It is selected by default and automatically applies when you click Apply.
Application	The name of the application for which ports are opened.
Protocol	Can be TCP, UDP and TCP, or UDP.
Source IP Address	Sets the source IP address from which incoming traffic is allowed.
Source Netmask	Sets a subnet mask used in conjunction with the Source IP Address to set a range of IP
	addresses. Enter 0.0.0.0 for all.
Destination IP Address	The LAN’s destination IP address for incoming traffic.
Destination Netmask	Subnet mask used in conjunction with the Destination IP Address to set a range of IP
	addresses. The default is 255.255.255.255.

Destination Port Start The starting port number that is opened for this application.

Destination Port End The ending port number that is opened for this application.

Destination Port Map Destination port mapped on the LAN (destination) side to which packets are forwarded. There are two types of port mapping:

•One-to-one (one port mapped to one) (WAN = 500 to 600; LAN = 500 to 600)

•Multiple-to-one (several ports mapped to one) (WAN = 500 to 600; LAN = 700) Wildcard (*) entries are allowed for the IP Address, Netmask, and Port range fields.

VT2142 Voice Gateway User Guide 29